| Refraction seismic prospecting concerns itself with the first longitudinal wave front impetus to reach any point by any path. |
| We are therefore forced to suppose not merely that the longitudinal wave does not affect our eyes as light, but also that it does not absorb any material part of the incident energy. |
| A longitudinal wave is characterized by particle motion in the same direction as wave propagation, as from a piston source. |
| Since the motion of the medium at any point is a small vibration back and forth in the direction in which the wave is proceeding, sound is termed a longitudinal wave. |
| This will lead to a better longitudinal wave profile and reduce resistance leading to much improved fuel efficiency for clients. |
| This discovery led him to the conclusion that light was not a longitudinal wave as previously supposed but a transverse wave. |
